A man suspected of pushing a teenager onto the Red Line train tracks has died after being taken into custody in downtown L.A., police said.

Police say when the suspect emerges from the station, he then assaults a construction worker. Several workers then held him down until officers arrived.

New body camera video shows officers arriving and placing the 47-year-old man under arrest. Officers can be heard saying that his head and hand are injured, and that they believe he's under the influence of some sort of narcotic.